A friend of mine who recently started brewing partial mash has asked me to give him a few of my recipe's. My recipe's are all-formulated for all-grain. I am wondering if there is a rule of thumb as far as how much of your base grain would be replaced with extract when converting the recipe?
I guess theoritically you are limited by the amount of grain that you can stick in one of those large grain bags that most people use for partial mash. On the lower extreme I guess you want to include enough base grain in the mash to make sure you have enough enzyme to convert any non-crystal specialty grains or adjuncts that you are using.
This quesion is probably a matter of personal preference, but I'd appreciate thoughts.